Top-level heading

Sulla classificazione delle soluzioni dell’equazione di Lane-Emden in domini non limitati

Lo scopo del seminario e di presentare alcuni recenti risultati riguardanti le soluzioni dell’equazione di Lane-Emden in domini non limitati dello spazio euclideo ad N dimensioni. In particolare, si p...

The boundary behaviour of blow-up solutions related to state constrained problems

We study the asymptotic behaviour near the boundary of explosive solutions of a viscous Hamilton-Jacobi equation. This model was introduced by J.M. Lasry and P.L. Lions from a state constrained proble...

Travelling waves in spatially heterogeneous media

We consider travelling waves in spatially recurrent diffusive media, including the almost periodic and quasi-periodic ones as special cases. We first define the notion of travelling waves under such h...

On the dynamics of the heat equation with superlinear nonlinearity

We discuss the dynamical behavior of the semiflow associated to the nonlinear heat equation ut − ∆u = f(x, u) on a bounded domain with Dirichlet boundary conditions. The nonlinearity f grows superline...

Periodic minimizers of atomistic systems

The asymptotic behavior of minimizers y ∈ R2N of the energy EN (y) = XN i=1XN j=i+1 V (...

Modelli variazionali motivati dallo studio dei difetti nei cristalli

Un recente modello variazionale multi-fase introdotto da Koslowski e Ortiz propone di studiare certi problemi di meccanica con un approccio variazionale attraverso funzionali del calcolo delle variazi...

On the prescribed scalar curvature on 3-half spheres: multiplicity results and Morse inequalities at infinity

We consider the existence and multiplicity of riemannian metrics of prescribed mean curvature and zero boundary mean curvature on the three dimensional half sphere (S3 +, gc) endowed with its standard...

Sul problema di Dirichlet per l’equazione della curvatura media

Si studia il problema di Dirichlet per l’equazione della curvatura media sul disco con dato al bordo gamma. Il problema è variazionale e caratterizzato da mancanza di compattezza. Se la curvatura medi...

Un problema di rimozione di massa

Si considera il problema di rimuovere una fissata quantita di materiale da una regione D nella maniera piu efficiente possibile. Per tener conto del fatto che non tutte le direzioni si percorrono con ...

Degeneration of differential operators: an overview

I will discuss various modes of degeneration of differential operators and associated Lie algebras of vector fields and indicate a systematic approach to uniform invertibility under appropriate ellipt...

Construction of a blow up solution for a supercritical nonlinear Schrodinger equation

I will consider the quintic two-dimensional focusing nonlinear Schrodinger equation iut + ∆u +...

New developments in the theory of self-dual partial differential equations

We introduce and analyse a general -and remarkably encompassing- concept of self (and antiself) dual partial differential equations. The class contains many of the basic families of linear and nonline...